Popular questions

Hello. I think you may be having one of the following problems: Mass AirFlow (MAF) sensor: the MAF sensor helps to control how much air mixes with the fuel. If the sensor is defective, the van will get...

Replacing valve stem seals without removing the heads will typically require a couple of specialty tools to accomplish. On a given cylinder, you will want to be sure that both of the valves are closed. Then you remove the spark...

Hi, most likely, this noise comes from worn internal components in your engine that momentarily do not have oil pressure to eliminate metal-to-metal contact. When oil pressure comes up, usually within a few seconds of engine operation, pressurized oil prevents...

Trouble code P015b is not related to, or potentially caused, by a loose gas cap or any other EVAP system malfunctions for that matter. The code instead relates to degraded performance of one of the engine's oxygen sensors. In some...

That does sound serious! From that description, it sounds like your Toyota Corolla has an electrical problem that needs to be addressed. The recommendation I have is to get your Corolla’s fuses checked. Fuses can be checked a few different...

On Fords, if nothing happens when you turn the key, that's generally caused by two main things. Either the ignition switch has gone bad or your anti-theft system has gone bad. The ignition switch itself is just an electronic part...

The windshield wipers are key safety features that dramatically increase visibility when it is raining. The windshield wipers have three settings: INT (intermittent), LO (low), and HI (high). To turn them on, pull down on the wiper lever, which is...

The steering lock may not be unlocking either due to a faulty ignition lock housing or more commonly as the cars age a faulty spring at the steering wheel on the under side of the column. If the ignition lock...

The Instantaneous Fuel Economy feature in the driver information center (DIC) displays the fuel economy that your vehicle is currently achieving. To view the Instantaneous Fuel Economy feature, press the MENU button until the DIC displays Trip/Fuel Information Menu, then...

P2195 and P0171 occur when the engine is running too rich (too much fuel relative to air charge) and the engine feedback system is unable to compensate. The "how can you fix this" depends on which component(s) in the system...

Claimed by Jay Safford

Buying a used air conditioning compressor could lead to more problems. You could easily end up having to do the job twice and a new compressor is not so expensive that I would take that chance. The good news is...

Does your car have a sun/moonroof? Sometimes the drain under the glass between the channels gets clogged with debris, if your lucky you can see it but if not have a certified mechanic track down the source of the leak....

Have lived in St George for six years, I understand the frustration you're experiencing with the legality of your tint. The truth is that the State of Utah frequently changes automotive safety standards; in most cases, on an annual basis....

Hello - the big nut in the center of the wheel holds the hub and wheel onto the axle - don't remove that! If the wheel doesn't want to come off after removing the 3 or 4 small bolts or...

Hello. I would suggest not putting in 20w50 oil as it is too thick and can cause engine damage from tight areas of the engine that will not get oil. You should use 5w30 only.

Hi there, thanks for writing in. Unfortunately, we need to know a bit more information in order to give you an accurate diagnosis such as your vehicle, make, model and year. However, in many cases, the rattling sounds you're describing...

Hi there. Typically the Chevrolet unique code of C0040 is an indicator of an ABS sensor or module problem. You might want to review this video on how many mechanics diagnose the source of this issue and resolve it with...

Hello - I would first use a scan tool that can access problem codes from your AWD system (will likely be specific to your manufacturer) to determine what is wrong with your AWD system. This will expedite accurate diagnosis and...

Hello. This can be caused by a few things. If the battery was connected improperly at any point then you may have had a fuse blow. Most of the time if this occurs the vehicle wouldn't have started to begin...

Hi there. When your car is jerking around, this means that the engine is having a misfire and causing the engine to stumble making the vehicle seem to jerk around. Check the camshaft position sensor for any damage and if...

The OEM lifters from Nissan, which are the recommended lifters, cost roughly $430 for the set of 24. The camshafts have to be removed from the cylinder head to access the valve lifters which makes it a 12 hour job...

Hi There, What you are describing sounds like a failing water pump. Generally, when a water pump is going bad, you may hear a bit of a whining sound combined with the pump leaking. The most common place for the...

The a/c magnetic clutch relay is in the under hood No. 1 relay block. It is marked "MG CLT". If you apply battery voltage to terminals "1" and "2" of the relay, there should be close to zero resistance across...

Hello and thank you for contacting YourMechanic. The noise you are hearing is the serpentine belt burning on the A/C clutch pulley from the A/C compressor being locked up. Open the hood and with a flashlight look at the A/C...